[0038] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.
[0039] see figure 1 , figure 2The present invention provides a rope fishing type torsional impact coring drill, which includes an outer tube assembly 1 and an inner tube assembly 2; the inner tube assembly 2 is sheathed in the inner cavity of the outer tube assembly 1. The outer pipe assembly 1 is composed of an upper connecting pipe 1-1, a snap stop head 1-2, an upper outer pipe 1-3, an upper reamer 1-4, a water blocking ring 1-5, and middle and outer pipes. 1-6. Twist transmission joint 1-7, lower outer tube 1-8, centralizing ring 1-9, lower reamer 1-10 and drill bit 1-11 are connected by thread; snap stop head 1-2 is embedded in the upper In the inner cavity of the connecting pipe 1-1, it is limited by the threads of the upper connecting pipe 1-1 and the upper outer pipe 1-3; the water blocking ring 1-5 is embedded into the inner cavity of the upper reamer 1-4 , at the same time through the threads of the upper outer tube 1-3 and the upper reamer 1-4 to be tightened and then pressed; After tightening with the thread of the lower reamer 1-10, it is limited; the drill bit 1-11 is a PDC drill bit.
[0040] see image 3 , In the rope fishing type torsional impact coring drill provided by the present invention, the inner tube assembly 2 is sequentially provided with a salvage component 2-1, a turbine component 2-2, a torsional impact generating component 2-3, a torsion component 2-3 from top to bottom Shock transfer assembly 2-4 and sampling tube assembly 2-5.
[0041] see Figure 4 , In the rope salvage type torsional impact coring drill provided by the present invention, the salvage component 2-1 is provided with a fishing spearhead 2-1-1, a spring clip mechanism 2-1-2 and a single-action bearing 2-1-3; The spear fishing head 2-1-1 is matched with the rope salvage device; the spring clip mechanism 2-1-2 cooperates with the bullet clip blocking head 1-2 of the outer tube assembly 1 to realize the axial locking of the inner tube assembly 2 The single-acting bearing 2-1-3 is sleeved on the clip mechanism 2-1-2, and is used to realize the relative rotation between the salvage assembly 2-1 and the turbine assembly 2-2.
[0042] see Figure 5 , the rope salvage type torsional impact coring drill provided by the present invention, the turbine assembly 2-2 includes a liquid inlet pipe 2-2-1, a turbine stator 2-2-2, a turbine rotor 2-2-5, a liquid outlet pipe 2-2-1 Pipe 2-2-3 and universal joint 2-2-4; the side wall of the liquid inlet pipe 2-2-1 is provided with a liquid inlet hole 2-2-1-1, and the liquid inlet pipe 2-2-1 The upper end is connected with the salvage component 2-1, and the lower end is connected with the liquid outlet pipe 2-2-3; the turbine stator 2-2-2 and the turbine rotor 2-2-5 are assembled and then sleeved on the liquid inlet pipe 2-2-1 In the inner cavity of the liquid outlet pipe 2-2-3 is provided with a liquid outlet hole 2-2-3-1 on the side wall; a universal joint 2-2-4 is installed under the turbine rotor 2-2-5 , the universal joint 2-2-4 is connected with the torsional impact generating assembly 2-3.
[0043] see Figures 6 to 10 , In the rope fishing type torsional impact coring drill provided by the present invention, the torsional impact generating assembly 2-3 includes an upper end cover 2-3-1, an impact shaft 2-3-2, an impact block 2-3-3, Compression spring 2-3-4, guide block 2-3-5, lower end cover 2-3-6 and impact tube 2-3-7; the impact shaft 2-3-2 is set inside the impact tube 2-3-7 , the upper end cap 2-3-1 and the lower end cap 2-3-6 are fitted on both ends of the impact shaft 2-3-2, and the upper end cap 2-3-1, the lower end cap 2-3-6 and the impact shaft 2 The bearing is installed between -3-3, the impact block accommodating cavity 2-3-2-1 is arranged in the middle part of the impact shaft 2-3-2, and the left and right sides of the impact block accommodating cavity 2-3-2-1 are symmetrically arranged Two sets of spring accommodating chambers 2-3-2-2; the impact block 2-3-3 is placed in the impact block accommodating chamber 2-3-2-1, and the impact block 2-3-3 is provided with an impact portion 2- 3-3-2 and the radial movement driving part 2-3-3-1 located on both sides of the impact part, the impact part 2-3-3-2 is provided with a central long groove 2-3-3-3, the impact part 2-3-3-3 The block 2-3-3 is installed in the impact block accommodating cavity 2-3-2-1 of the impact shaft 2-3-2 through the center long groove 2-3-3-3 in cooperation with the pin shaft 2-3-8; The compression spring 2-3-4 is placed in the spring accommodating cavity 2-3-2-2, one end of which is fixed at the bottom of the spring accommodating cavity 2-3-2-2, and the other end is against the impact block 2-3-3 on the radial movement driving part 2-3-3-1; the guide block 2-3-5 is fixed on the inner wall of the impact tube 2-3-7, and is provided with a half moon matched with the impact block 2-3-3 Tooth guide surface.
[0044] see Figure 11 , the rope fishing type torsional impact coring drill provided by the present invention, the torsional impact transmission assembly 2-4 includes a torsion transmission tube 2-4-1, a mandrel 2-4-2 and a torque transmission tube single-action bearing 2- 4-3, the upper end of the torque transmission tube 2-4-1 is connected to the impact tube 2-3-7 of the torsional impact generating assembly 2-3, and the outer wall of the torque transmission tube 2-4-1 is provided with a The external splines 2-4-1-1 matched with the assembly 1, the mandrel 2-4-2 is set in the torque transmission tube 2-4-1, and two sets of torque transmission are set outside the mandrel 2-4-2 The tube single-action bearing 2-4-3 realizes the relative rotation of the torsional impact transmission assembly 2-4 and the sampling tube assembly 2-5 through the torsion transmission tube single-action bearing 2-4-3.
[0045] see Figure 1 to Figure 11 The present invention is a rope salvage type torsional impact coring drilling tool, and its working process mainly includes two parts: normal drilling and coring operation. During the drilling process, the inner tube assembly 2 is fitted into the outer tube assembly 1, and the inner tube assembly 2 is positioned axially through the following two positions:
[0046] 1. The clip mechanism 2-1-2 of the salvage component 2-1 in the inner tube assembly 2 is opened and then stuck in the clip head 1-2 of the outer tube assembly 1;
[0047] 2. The lower end of the torsion transmission tube 2-4-1 of the torsional impact transmission component 2-4 in the inner tube assembly 2 is located inside the torque transmission joint 1-7 of the outer tube assembly 1. Splines 1-7-1 on. The drilling fluid flows through the turbine assembly 2-2, thereby driving the turbine assembly 2-2 to rotate, and the turbine assembly 2-2 drives the impact shaft 2-3-2 in the torsional impact generating assembly 2-3 to rotate, which is installed on the impact shaft 2-3 The impact block 2-3-3 on the -2 periodically hits the inner wall boss structure 2-3-7-1 of the impact tube 2-3-7 to generate a torsional impact force, and then the torsional impact is transmitted by the torsional impact transmission component 2-4. The force is transmitted to the drill bit 1-11 of the outer tube assembly 1, thereby applying an additional high-frequency impact force with a uniform and stable rotation direction to the drill bit 1-11, improving the rock crushing efficiency of the drill bit 1-11, and at the same time, the core enters the sampling tube. inside components 2-5. During the coring operation, the spearhead 2-1-1 is lifted up by the fisher, and the clip mechanism 2-1-2 is recovered to realize the positioning and unlocking of the upper part of the drilling tool. -4-1 external spline 2-4-1-1 and the internal spline 1-7-1 of the transmission twist joint 1-7 in the outer assembly 1 are separated, and the core and inner tube assembly 2 can be smoothly lifted Drill pipe inner hole.
[0048] see Figure 12 to Figure 21 , the working process of the torsional impact generating assembly 2-3 is as follows: In the first step, the impact shaft 2-3-2 drives the impact block 2-3-3 to rotate, and the radial movement of the impact block 2-3-3 drives the part 2 -3-3-1 rotates along the crescent-shaped inner wall of the guide block 2-3-5, while compressing the compression spring 2-3-4 installed between the impact block 2-3-3 and the impact shaft 2-3-2 (as attached Figure 12 shown), to make the impact part 2-3-3-2 of the impact block 2-3-3 protrude from the impact block accommodating cavity 2-3-2-1 of the impact shaft 2-3-2 (as shown in the appendix). Figure 13 in the second step, when the radial movement driving part 2-3-3-1 of the impact block 2-3-3 moves to the tail of the guide block 2-3-5 (as shown in the appendix) Figure 14 shown), the impact part 2-3-3-2 of the impact block 2-3-3 hits the boss structure 2-3-7-1 of the impact tube 2-3-7 to realize a torsional impact vibration (as attached Figure 15 In the third step, after the radial movement of the impact block 2-3-3, the drive part 2-3-3-1 turns over the tail of the guide block 2-3-5, the impact block 2-3-3 is compressed Move up under the action of spring 2-3-4 (as attached Figure 16 shown), the impact part 2-3-3-2 moves radially under the cooperation of the central long groove 2-3-3-3 and the pin 2-3-8, and the impact part 2-3-3-2 quickly retracts to In the impact block accommodating chamber 2-3-2-1 (as attached Figure 17 shown); the fourth step, the impact block 2-3-3 continues to rotate (as attached Figure 18 , Figure 19 shown), when the impact part 2-3-3-2 of the impact block 2-3-3 hits the boss structure 2-3-7-1 of the impact tube 2-3-7, the secondary torsion is realized shock vibration (as attached Figure 20 , Figure 21 shown).
