Well control is a very complicated and meticulous work, and it is also a long-term hidden danger factor that can appear at any time. Oil fields all over the world attach great importance to it, but there are hundreds of blowout accidents and fire and explosion accidents every year. The foundation of this technology in our oilfield is particularly weak. To this end, each of us should do our best to maintain a high degree of vigilance, do our due work step by step, and fulfill our due responsibilities, specifically:
(1) Improve the casing string structure according to the designed depth and layers of casing.
(2) Install the wellhead according to the required standards, ensure the connection quality of each flange and each thread, carry out strict pressure test, take no chances, count the number of people, and file for future reference. Including choke manifold, blowout prevention pipeline, kill manifold, etc.
(3) Strictly carry out handover, learn to operate, and leave no hidden dangers.
(4) Teach all drillers, senior officials and team cadres the operation methods and precautions in time.
(5) Conduct all-round training for the whole team and master the "four, seven" movements skillfully.
(6) Three disclosures (geology, engineering, mud) before drilling oil and gas reservoirs must be done well in advance, and special attention should be paid to whether the formation is ahead of time, and no chance encounter is allowed.
(7) Drill casing shoes and test the formation fracture pressure in sections, which shall be commanded by special personnel, recorded and paid attention to the construction method.
(8) When drilling oil and gas reservoirs, adjust the mud proportion in advance according to the depth.
(9) The observation on duty should also be carried out in strict accordance with the requirements, and the standard should not be lowered, and the scale of tripping liquid level change should be marked to improve the observation accuracy.
(10) Drill the oil and gas reservoir, observe short trips according to the situation, measure the oil and gas column speed every trip, and adjust the specific gravity as required.
(1 1) After drilling the oil and gas reservoir, it is necessary to regularly check whether there are any deficiencies in all work and arrange rectification in time. If the drilling is not up to standard, stop drilling and rectify, and do not work in spite of illness. Especially the supplement of resource consumption and the elimination of lax mood.
(12) When cementing, it is necessary to calculate the influence of cement weightlessness, pay attention to the specific gravity balance and proper back pressure, and do well the equipment work first.
(13) In case of well kick and blowout, effectively control the wellhead and calculate the well killing. Therefore, do a good job of small displacement weight cycle test.
(14) Adjust the mud proportion of the whole mixed well, even for a short time.
(15) Be familiar with the contents of well control regulations, and carry out all work as required. If there are any problems in the implementation, please give your opinions, and * * * will improve this technology.
Cementing engineering
1, casing field management
There are many factors affecting cementing quality, and the problems in cementing quality have far-reaching influence. Drilling engineers and technicians shall:
(1) At ordinary times, it is necessary to master the blocking situation in the underground, analyze the concentrated and serious reasons, and take measures to eliminate them.
(2) After electrical logging, further understand the borehole diameter change through the borehole diameter diagram, and drill the well smaller than the drill bit.
(3) Casing preparation: casing grade, wall thickness, appearance, residual buckle, length measurement, diameter, length and combination, casing string and base assembly, etc.
(4) Inspection and preparation of casing tools
(5) Implement casing running measures and define posts and standards.
(6) Start casing running and nailing well in the later stage of casing running, so as to ensure the safety of casing running in substructure, the alignment and fixation of wellhead, the control of joint depth and the quality of threaded connection.
(7) Check the cementing design and make suggestions according to the actual situation.
(8) In the process of cementing construction, supervise and assist the cementing team on site to ensure the pressurization quality.
(9) Cementing quality inspection and pressure test.
(10) Supervise and guide the installation of casing head or the welding of annular steel plate to ensure no mistakes.
2. Casing calculation
3, magnetic positioning position
4. centralizer: normal, whirlwind (direction)
5. Precautions for casing running: prevent the seal of Robo head seat from leaking, and inject mud to prevent the spoiler from breaking.
6. Supervise and direct the cementing process
7, sound amplitude measurement
8. Oil well handover
The ultimate goal of drilling engineering is two, one is to find oil and gas resources, and the other is to obtain valuable information.
The data is divided into two parts, one is oil and gas data, and the other is technical data.
Information is the basis for us to grasp the oil and gas display and engineering situation in time and guide the progress of the project, and it is also the basis for us to summarize, improve, popularize and communicate. This is an important achievement of investment.
How can I do this job well?
1, all-that is, according to the required content and standards. It is also necessary to collect basic data that is needed at work but may not be needed by superiors. Technical cadres should consciously collect and report information, and don't ignore the collection of other useful information. The more information they have, the greater their right to speak, so that analysis can be more divided and decision-making can be easier and more correct.
2, quasi-is "true". Truth is the soul of all scientific and technological information work. "Truth" means that one is one and the other is two. Admittedly, we should try to be intuitive. Measure, see and record in person, and don't listen to hearsay. Respect the original records, don't engage in "memoirs", don't take it for granted, let alone make it up, and don't be bound by some existing views. Don't be influenced by authoritative opinions, let alone deliberately cover up the truth. At present, technicians in Zhongyuan Oilfield fill out the handover report themselves.
3, timely-timely is fast. Speed is the basic requirement of data work, and a lot of data will lose its original value or significance if it takes too long. Even if it is meaningless, we can turn useful information into productive forces as soon as possible.
Timely is also a condition for whether the data can be "accurate". In many cases, it is difficult to be "accurate" for data that cannot be described and processed in time.
Any delay, any method of recording information by memory is not desirable, and sometimes even self-deception.
4. Synthesis and analysis
The data value of another star is limited, so comprehensive analysis can find out the law, and the understanding of the law can better guide production.
The process of comprehensive analysis is the sublimation of data, the improvement of our understanding and the development from micro-understanding to macro-understanding. Being good at comprehensive analysis is the only way for our technical work to use limited data, improve ourselves and improve our work.