A new kind of non magnetic drill collar.

In the drilling process, the drill tends to have a magnetic, having a magnetic field, the magnetic influence of the measuring instrument, can not get the correct measurement information wellbore trajectory data. To this end, the drill collar manufacturer through continuous efforts and research, to produce a new kind of non magnetic drill collar. It is the use of a low carbon high chromium manganese alloy steel, which is the result of a rigorous refining and chemical composition ratio by forging achieve its mechanical properties, good low permeability, mechanical properties of high strength, excellent resistance to intergranular corrosion cracking resistance and excellent abrasion resistance.

                      

OCTG Casing and Tubing are essential tubulars.

OCTG Casing and Tubing are essential tubulars.
Production tubing is normal nowadays into the well casing pipe in the well. Flowing wells, oil flows into the ground through the tubing into the gathering process. Apheresis wells, tubing, sucker rod deep well pump (ie, "three pumping" device) combination, the oil pumped to the surface, into the gathering process.
At the end of the sleeve is drilling down into the underground pipe, OCTG Casing  and cementing wall with cement, and then with the alignment target layer
perforating guns, the oil flow through the rock, cement, casing into the well bottom, then enter the tubing to the ground.

Sucker rod centralizers is downhole tool

Sucker rod centralizers is anti-pumping wells eccentric wear downhole tool for partial mill pumping wells, especially for rod and points or more partial grinding deviated directional wells and pumping, sucker rod and points hereinafter, with nylon rod centralizer body fit, preventing side wear better. By the coupling rod centralizer, centralizer sleeve, pup joints. Sucker rod centralizer having flexible and strong, it is in contact with the tubing wall, rod and tube may reduce friction, enhanced oil pumping life.

Part of the Drill String Components

Drilling tools drill pipe is connected to power transmission lever. Usually part of the drill string components are: drill, drill collars, drill Pipe,drilling stabilizers, special fittings and kelly. The basic role of the drill string is: (1) from under the drill bit; (2) applying WOB; (3) the transmission of power; and (4) conveying the drilling fluid; (5) special job: squeeze cement, processed downhole accidents.

Sucker rod pumping wells are elongated rod

Sucker rod pumping wells are elongated rod, then light it on the bar, then under the pump from the power transmission role. A single 7.6 or 8 meters in length, the material is generally high carbon steel, hard chrome plated, with internal threads in the hoop tubing connected on a root has been extended to an underground reservoir of the piston, reciprocating motion to pump oil through the present the oil length generally about two kilometers to the Shengli Oilfield, for example, Sucker Rod Pump Unit Controller include pumping unit, sucker rod pump

Oil field development program refers to detailed exploration from fully developed working order

Oil field development program refers to detailed AISI 4145H Crossover exploration from fully developed working order. 1. See oil exploration wells constructed belt arrangement, rapid control of oil-bearing area. 2. In the oil-bearing area has control, playing well data, understand the reservoir characteristics. 3. Subdivision stratification test oil, seek oil production parameters. 4. open production test area, to further understand the reservoir characteristics and its variation. 5. According to a comprehensive study of core, logging and well testing, production test and other information to make the reservoir stratification comparison chart, construction diagrams and fault maps to determine the reservoir type. 6. oilfield development and design. 7. According to the most reliable and stable oil drilling set basic well. After the drill is not put into operation, according to all the information well, for all the oil reservoir sand bodies were compared, and then modify and adjust the original plan. 8. After put into production wells and injection wells, collect actual production and pressure data to study, Drilling Crossover Subs to modify the original design specifications, fix a proration of each specific development period, with injection program. Due to the different circumstances of each field, the development of the program are not identical.

Drill in long-term use of corrosion and vfd speed controller wear, so that certain areas of wall thinning or presence of micro-cracks. Intensity greatly diminished, the role of external forces, most likely from the drill pipe weakest pulled off or broken.
③ processing card when drilling accident, to activities inappropriate use, when the stress exceeds the yield limit. It is deformed. Pull the drill pipe stretched thin, the stress exceeds the strength limit when. The drill will pull off.
④ resulting in the handling or use of a trauma, such as kava teeth marks, well falling matter (drill teeth, jaw) teeth caused by transverse score slips, and bruises, injured, etc. These are often traumatic stress concentration point. Thereby scaling out. And a variety of corrosion can easily start here. Cause local damage to the drill.
⑤ not tight on the buckle, the torque is not required to buckle, shoulder joints did not try to be, on the one hand shoulder losing seal. Thread likely to be drilling thorn bad. On the other hand, due to loss of shoulder support force, the male and female threads produce frequent alternating stress, fatigue thread will break.
⑥ the drilling pressure is too coil tubing drilling rig large, or the occurrence of another continuous drilling, or when a horse sticking Difficult to drill female thread swell, bursting, causing the drill off.
⑦ various connecting thread of the mating connector nipple especially for long term use and occasional breaking check that thread wear and tear caused by the drill off. You know, connecting threads are often in flux, can not check.

Drill withstand long-term work in tension, Drilling String Crossover Sub compression, bending, twisting and cutting complex stress, and in some regions produce frequent alternating stress, such as normal drilling in and near the point of the drill, drill accident processing card drill and bend in the eyes of the well drilling operation when the free section, when the stress reaches a sufficient strength and a sufficient number of alternating, will produce fatigue damage.
Critical speed of vibration caused damage. When the rotational speed of the drill string reaches a critical speed, make drilling vibration, longitudinal vibration and lateral swing in two forms, while a certain depth in the two forms will coincide with the vibration, this vibration will drill under alternating stress, prompting drill premature fatigue. Various steel drill pipe depth critical speed and two vibration coincides shown in the following table as a reference.
Jump when drilling drill, do not drill, drill even have a vertical vibration, but also to drill the transverse vibration of the tool pressed portion of damage is very serious, so drilling in gravel, crossover drilling the most accident-prone collars ʱ??
Drill wells in the eyes of bending rotation, necessarily to its own axis as the center of rotation, this part of the wall by the side of the drill pipe under pressure from the side wall of the tensioning, per rotation, alternating tension and compression stress once thus formed frequently alternating stress, prompting drill early damage.

① drill. The working end of the drill bit

is drilling work directly in the bottom of the hole broken rock. Drilling String Crossover Sub Steel drill bit body and at the end of the inserts welded with hard alloy cutting tool or diamond particles composed. With the core bit body with a threaded pipe connection, inverted cone drill bit body for mounting lifting off or put in the material, so that the card off the core.
② core tube. Core is accommodated in the drilling cores, but also bear and pass WOB and torque to drive the drill work.
③ Reducing joint. It is used to drilling jars manufacturers connect the core pipe and the drill string.
④ take powder tube. In large rock powder, rinse insufficient liquid amount, collect large grain cuttings. Especially when drilling grain drilling must take powder pipe band.

Bohai Drilling hole drilling technology Drilling String Crossover Sub services company servicing area, technicians are using the new high Jianfeng means within the drill pipe surface detected. This new device is a spy device that the company developed a manual drill within the video, has been the national utility model patents, to fill the gap.
This set of devices using optical, electronic and mechanical technology, capable of surface corrosion in the oil drilling conventional drill hole defects, cracks and other rapid detection and real-time display, store test data for detecting an inner diameter of 70 mm -150 mm drilling, having a 70-degree angle and 90-degree vertical side perspective, the detection rate of 0.2 m / sec, can be application-specific software for quantitative analysis.
Since September 2013 put into use in the field since the drill manual video endoscopic device has been in Dagang Downhole Stabilizers Oilfield, Jidong Oilfield drilling site applications, the cumulative detection drill 3.3453 ten thousand, was found to have different shapes erosion pit, defect etch pits drill with 630, downgrade or scrap timely, effectively avoiding the drilling failure, reduce drilling rig losses caused by the failure of more than 400 million.

In order to improve the efficiency of the drilling jars manufacturers transfer of equipment commissioning process, the company relies cone bit industry is relatively surplus production capacity, the drill hole is reasonable to integrate aspects of the production, quality, technology, equipment and other resources, the formation of the transfer device debugging process special working group to focus on technology research and quality control, establish and improve the transfer of product quality management system and process management system, ensuring product quality and processing. The special working group on the screw hole parts supporting the processing matters, repeated consultations with the parties concerned to determine the spool and sleeve, water, hat and internal spline fitting four product transfer process, received a total of 40 parts finishing drawings, craft drawing 90 parts, 29 parts processing card. By the end of June, it has completed the transfer of screw drill products processing debugging and process characterization work, corresponding with batch processing conditions. Months of the special working group on diamond drill further transfer processing issues, to communicate with the parties concerned to further clarify the future of the transfer and processing of crossover drilling diamond drill bit products processing range, defined as from 6 inches to 17 inches all the upper body, steel core, and part of the lower body processing. In early June, we have completed the corresponding steel core debugging and process characterization, with the corresponding batch processing conditions.

The use of functional gradient structure is Drilling String Crossover Sub decomposed at high temperature Ti (CN) compounds, atomic diffusion and heat transfer generated gradient in the material. Such as: sintering and heat treatment process through the appropriate atmosphere to induce proliferation-related elements in the air to change the microstructure analysis of cemented carbide, and the material properties of the gradient appears in one-, two-, three-dimensional space (mainly from the Co content table and in the change), can solve the contradiction between the existence of internal performance carbide, this technology has been in the Swedish company Sandvik industrial applications in foreign countries, and our late start, although after 10 years of research work, but still at the laboratory stage, from industrial applications must strive, breakthrough key technologies and equipment have yet to be.
Increase the surface coating to improve the mechanical properties of materials. Experiment was done, with TiN coated drills, life can be increased by 50% to 60%. Chapter Jiangxi Tungsten Industry Company Sheep build high total workers, who made a lot of work, after the coating material has greatly improved in hardness and wear resistance, coating methods casing and tubing coupling continue to progress, from a chemical vapor deposition development of plasma physical vapor deposition, laser surface strengthening treatment methods. Also heat treatment, cryogenic treatment, magnetic treatment technology can improve the performance of the material.

Focus on the combination of development Downhole Drilling Stabilizers drill bit in recent years, petrochemical machinery company close closer to market demand, focus on strengthening the integration of elements of existing processing facilities and human resources, enhance the speed to market of products, and actively to meet the needs of the market products, promote relevant product market development, promote the integration of OCTG Tubular Good the development roller cone bits, diamond drill bits and screws and other industries.

u drill bit above generally refers Intergral Blade Downhole Stabilizer to all pipe joints below the water column, from the core pipe, reducer fittings, take powder pipe, centralizer, drill collars, drill pipe and drill pipe and other components active.
u drill is drilling in the composition of the main members, OCTG Pup Joint a plurality of drill pipe joints are connected by means of equivalent length of the drill hole depth column.
u main task is to lift drilling rigs and casing. Height rigs should match the length of the drill stand with roots.

Semi-submersible drilling platform with Corrosion Resistant Alloy Pipes excellent performance and a larger anti-wave variable loads and drilling in the deeper waters. At that time only a few countries in the world can build, and expensive. In order to adapt to China's actual conditions designed continental shelf of semi-submersible drilling platform, three units of the designer a large collection of hydrological and meteorological data, and through in-depth practical investigation crossover drilling of five kinds  of rigorous screening program was finally officially confirmed rectangular semi-submersible drilling platform solution. The main performance parameters; water depth of 35 to 200 m, the maximum drilling depth of 6000 m.

Bottom-known drilling rig instrumentation drilling barge Intelligent Drilling Robots or barge for rivers and bays and other shallow waters less than 30m. Bottom-founded platforms have two hulls, also known as work on the hull deck, cabin and equipment placement life, by means of opening the tail gun drilling boom; the lower part is a mat, and its main function is to support the role of submarine ballast and used as a drilling Foundation. Between two hulls connected by a support structure. Such drilling rigs to water within the mat after reaching the job site to the bottom. Therefore, from the stability and structure, the operation depth is not only limited, but also by submarine base (flat and firm level) constraints. Therefore, the slow development of this platform. However, shallow waters extending into the sea along the coast of Bohai Sea, China Shengli Oilfield, Dagang Oilfield and Liaohe Oilfield, large tidal range and seabed slope small, for the development of petroleum resources in such shallow water area, bottom-founded platforms still greater development in the future . The early 1980s, people began to pay attention to oil development in the Arctic waters, design, construction polar bottom-platform also attracted the interest of ocean Sucker Rod Pump Unit Controller  engineering. After sitting at the end there are several platform for the polar regions, it ballasted sit on the seabed, and then fill in the central platform of sand to prevent slippage platform, complete the drilling can be discharged ballast floating, and move to another a well location.

Most deep-water oil and gas field production Casing and tubing collar Gas tight connection systems will be under water, usually the ambient temperature is low, and deepwater oil and gas wells and may be HPHT. If oil and gas wells located in the high latitudes of the arctic zone or hot waters near the equator, this performance and with the degree of drilling rigs and offshore vessels are demanding. In addition to the ship function of echo each other, Offshore Oil Engineering (12.58, -0.11, -0.87%) in the last five years, the introduction of 17 sets of deep-sea underwater robot (108.060, 3.98, 3.82%) also extends these deepwater engineering vessel function. They will be in deep water oil and gas development, to come up with their own "killer", and "deep water fleet," along with each other vigorously to promote the production and maximize the benefits of play.
CNOOC deepwater drilling technology, equipment and ability has been recognized by international peers. 2015, in the Norwegian North Sea operations "USS Enterprise" won the first quarter Statoil rig Sealed bearing roller reamer comprehensive assessment of the first assessment, was named "the best platform for the quarter." This is the "USS Enterprise" since last September following the second award. This is the seventh China Sea oil rigs Statoil won the "best platform" title.

Lifting operations should implement special Sucker rods with molded guide command. Commanders should be holding a valid certificate rigging command, wearing distinctive Sucker rod pump unit controller identification command (eg: armband, vests, etc.), in a safe and appropriate location rigging crane drivers who can see clearly. When the commander and crane drivers and poorly should be added the command staff middle transfer signal Casing and tubing collar Gas tight connection commanding lifting. Lifting process, no person shall be hanging objects remain below or through, hanging objects can not stop people moving radius.

Including the completion of each Drill robot well before drilling engineering, drilling engineering and completion operations in three stages. Each stage of a project there are a number Oilfield robot for safety platform operation of construction process. The main steps generally include: fixed wells, roads survey, foundation construction, installation derrick, moving, installation of equipment, a drilling,Sucker rod pump unit controller secondary drilling, drilling, tripping, for drill, drill, completion, electrical measurement , casing, cementing operation and so on.

In geological work, the use of drilling equipment Roller Reamers Drilling Manufacturers to drill into the ground smaller diameter greater depth columnar hole, known as drilling. Drilling diameter and depth sizes, depending on the purpose and mineral drilling depth of burial. Drilling for oil, natural gas and groundwater drilling diameters Hydraulic mechanical double acting drilling jar are larger. The main functions are: ① get underground kind of information that take core drilling core taken from drilling, mine heart, debris, liquid-like, gas-like and so on. ② as geophysical logging channel, get all kinds of rock Mandrel sub for drilling jar layers geophysical field data. ③ observation as an artificial channel aquifers hydrogeological dynamics. ④ used for exploration, mining combine, develop groundwater, oil and gas, geothermal drilling.

Drilling is a systematic project, is a multi-disciplinary, multi IB down hole String Stabilizer trades using a variety of equipment, tools, materials carried out joint operations. While it is more closely co-ordinated program, multi-link ring interlocking continuous operation. The whole process of construction has considerable complexity. Including the completion of each well before drilling engineering, drilling engineering and completion L8013Cr Pup joint manufacturers operations in three stages. Each stage of a project there are a number of construction process. The main steps generally include: fixed wells, roads survey, foundation construction, installation derrick, moving,Spiral Grooved drill collar stock installation of equipment, a drilling, secondary drilling, drilling, tripping, for drill, drill, completion, electrical measurement , casing, cementing operation and so on.