How to deal with the deviation of rotary drilling rig?

: A. When the bending hole is not serious, the drilling rig can be readjusted to continue drilling. In severe cases, clay should be backfilled, and drilling should be carried out after the deposition is dense. Don't repair the hole directly with an impact drill to avoid sticking. B, when the deflection is not serious, and the hardness of the rock surface is not high, use a flat-bottomed drill to level before drilling or use a smaller bit pilot hole to reaming. C, serious deflection and rocks ... 20 19-06- 15 Interviewee: zxctystal 1 Answer 1 Which is cheaper? Enterprise answer: The selection of drilling rig needs to consider many factors such as type, control form, power supply voltage, drilling depth, diesel engine, shaft number, power supply type, engine brand and so on. , such as milling and drilling machine, combined drilling machine, tapping machine, hand electric drill, bench drill, etc. Control forms include numerical control, manual control, numerical control manual control, copying control and program control. The power supply voltage is 220v,110v ... 2020-05-08 Responder: Kunshan Lilly Automation ...10 What is the reason for the borehole deviation of rotary drilling rig? A: Geology: Geology is the main cause of well deviation. If the geology is loess and clay, there will be no error in drilling. Most of them are due to geological changes and uneven distribution of weathered rocks, which leads to uneven stress on the drill bucket during drilling. Drill bucket: the main function of drill bucket is to intercept drilling, but it also has the function of guiding and preventing deviation. Drill bucket base guide rod ... 20 17-03- 13 Responder: Shandong Lida Heavy Industry 1 Answer 4 How to solve the problem of inaccurate depth measurement of rotary drilling rig Q: How to solve the problem of inaccurate depth measurement of rotary drilling rig? The products of many different companies are like this, and now the machines in my hand are all unqualified ... A: Hehe, because the accumulated error is not allowed. Now, in order to reduce costs, manufacturers adopt low-profile products, which will happen. In foreign countries, the sensor is generally installed on the winch, and in China, the sensor is generally installed on the forehead. Answering on September 22, 2009: nasazfg 2 replied that the casing of rotary drilling rig encountered silt, and the casing would be squeezed when buried. What should I do? Answer: 1, the bored pile can be treated by steel casing follow-up method when it meets the karst cave geology. This method is to connect the high protection tube while drilling, and press or vibrate it into the drilling hole. When the pile hole passes through several caves, and the wall has been successfully built, and the hole is punched below, the formed mud-rock retaining wall collapses and leaks, which cannot be solved. Interviewee: cn#GLfGGfVGpp 1 Answer 2 How does the rotary drilling rig pile without deviation? Q: As shown in the figure, directly opening the pile hole will be biased towards the soil, which will do great damage to the bullet. Is there an economical way to straighten the hole? A: Hello, I'm an impact piling worker. Your job is more suitable for impact machinery! Contact me if you need anything! 20 12-08- 12 Interviewee:15033029011Answer: What should I do if the rotary drilling rig rolls over? Answer: The general cause of rotary drilling rig rollover is improper operation by the operator, so the operator must pay attention to the operation method when operating. Check the mast of rotary drilling rig when boarding the plane 20 18-06-26 Interviewee: njwxd888 1 Answer 1 There is one existing project, which is a high-rise long spiral bored cast-in-place pile+pile raft foundation, and there are ... Q: What is the pile deviation specification of pile raft foundation with additional problems? Thank you for your answer: allowable deviation of spiral bored pile construction in Technical Specification for Building Pile Foundation (JGJ94-2008): the middle pile of pile group is 70mm, and the middle pile of pile group is150 mm. Your deviation of 200~300mm is not calibrated. Only the architect of design has the ability and authority to decide this problem. 2011-1-08 Respondents: GXX 2 Other treatment measures for rotary drilling A: During grouting, if the mud level in the drilling casing mud suddenly rises and overflows the casing, and then suddenly drops and bubbles appear, it should be suspected as a sign of hole collapse, which can be detected by sounding hammer. If the sounding hammer stopped hanging on the concrete surface and didn't take it out, it can't be lifted now, or the sounding hammer can't reach the original depth when detecting the concrete surface, and there are many differences, so it can be confirmed that it is indeed a hole collapse. Reasons for Well Collapse ... 20 16-05- 18 Respondents: sese0668 1 Respondents What should I do if a hole collapses at a drilling depth of 8m? Question: Serious hole collapse? Answer: immediately backfill the drilling hole with clay mixed with not less than 5% cement mortar, dismantle the drilling rig if necessary to avoid the drilling rig being buried in the hole, and re-drill the hole after backfilling is stable. If the hole collapse is not serious, the proportion of mud can be increased to continue drilling, and concrete should be poured into the reinforcing cage quickly after the hole is formed. 20 19-03- 18 Respondent: Wang Baolong 30 1 Answer: What should I do if the rotary drilling rig collapses? A: Large mud weight is required. If it doesn't work, you have to use a reverse circulation drill or an impact drill. Drilling rig: A drilling rig is a mechanical equipment for drilling holes on the earth's surface, which can be a large outdoor drilling equipment for water wells, oil wells and natural gas wells, or a small equipment that can be moved by a single person, called an auger. Drilling rigs can sample underground mineral deposits or be used for safety purposes.