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.