Round iron bucket combined type water drilling platform

Abstract

The utility model discloses a round iron bucket combined type water drilling platform and belongs to the technical field of geological exploration. The platform comprises iron drum sets, round timbers and wood boards, each iron drum set is composed of cylindrical iron drums and bevel edge iron drums, the multiple cylindrical iron drums are connected end to end, the front ends of the cylindrical iron drums are connected with the bevel edge iron drums, the bevel angles of the bevel edge iron drums face downwards, and all the iron drums are fixed through through hole bolts on lug plates; longitudinal logs are fixed to the tops of the iron bucket sets through steel wire ropes and calipers, the longitudinal logs and a plurality of transverse logs are bound and locked through steel wire ropes to form a chessboard-shaped framework platform, square logs are fixed to the transverse logs through iron nails, and wood boards are laid on the square logs and fixed through iron nails; operation holes are formed in the wood plate and the iron drum set below the wood plate, a winch is installed beside the operation holes, and the operation holes are located in the front side of the platform. The platform is suitable for water drilling of water areas with the working water depth being 2-30 m and the flow velocity being smaller than 1 m / s, low in cost, high in stability, movable and particularly suitable for geological exploration requirements of low-flow-velocity deep water areas.

Description

TECHNICAL FIELD

[0001] The utility model belongs to geological exploration technical field, concretely relates to a round iron bucket combined type water drilling platform. BACKGROUND

[0002] Water drilling has the following characteristics: (1) it often uses special drilling facilities and auxiliary facilities that can float on water, such as small drilling ships, self-elevating drilling platforms, floating drilling platforms, etc. (2) floating drilling facilities must have an anchoring positioning system on water, and one anchoring can complete at least one or several drilling holes. (3) special sampling equipment designed for deep water operations is required. (4) Most drilling holes are relatively shallow (10-30m), with the deepest being 100-200m. (5) Engineering sewage must meet relevant water quality control standards.

[0003] The utility model patent with publication number CN 220865621U discloses an iron bucket raft type drilling platform for water drilling in low flow rate areas, which includes an oil barrel raft type box, a deck, and a scissors support. The deck is laid on the oil barrel raft type box, and the deck is provided with a drilling hole. The scissors support is arranged on the side of the oil barrel raft type box. The oil barrel raft type box includes a plurality of oil barrel rows, a first fixing assembly, and a binding assembly. The oil barrel rows are arranged in parallel, a plurality of long strip-shaped first fixing assemblies are laid on the parallel oil barrel rows and intersect in the length direction, and the oil barrel rows and the first fixing assemblies are fixed by the binding assembly. The oil barrel row includes a plurality of oil barrels arranged in a straight line, long strip-shaped second fixing assemblies are laid on both sides of the oil barrel row, and the oil barrels arranged in a straight line and the second fixing assemblies are fixed by the binding assembly.

[0004] Although this platform solves the problem of the platform in the prior art that needs to be assembled and connected by channel steel, has a large self-weight, and needs to use a welding machine, causing inconvenience in use and high installation cost. However, due to the small volume of a single iron barrel and the water depth of less than 0.6m, the splicing only relies on lead wire or steel wire rope, and the overall stability is poor, which is inconvenient to use and has high installation cost. UTILITY MODEL CONTENTS

[0005] The utility model provides a round iron barrel combined type water drilling platform which is convenient to install and has higher overall stability, and is suitable for low flow rate areas such as rivers, reservoirs, ponds, and lakes.

[0006] The application discloses a round iron barrel combined water drilling platform, which is characterized by comprising iron barrel groups, round woods and wood plates, each iron barrel group is composed of a cylindrical iron barrel and an inclined edge iron barrel, the two kinds of iron barrels are both formed by rolling and welding a steel plate to form a side wall, the inclined edge iron barrel is provided with an inclined edge at one end, the two ends of the two kinds of iron barrels are welded with steel plates to form a closed iron barrel, and the side wall of the cylindrical iron barrel is uniformly welded with an ear plate with a through hole at both ends, the side wall of the inclined edge iron barrel is uniformly welded with an ear plate with a through hole at the end without the inclined edge, a plurality of cylindrical iron barrels are connected in a head-to-tail mode and connected with the inclined edge iron barrel at the foremost end, the inclined angle of the inclined edge iron barrel faces downward, and all the iron barrels are fixed through the through holes in the ear plates by bolts.

[0007] Further, the diameters of the longitudinal round woods and the transverse round woods are not less than 200 mm.

[0008] Further, the size of the operation hole is 50 cm*50 cm.

[0009] Further, the guardrail is composed of vertical rods, upper horizontal rods and lower horizontal rods, the distance between the vertical rods is 2.0 m, the height of the upper horizontal rods is 1.0 m-1.2 m, and the height of the lower horizontal rods is 1.0 m.

[0010] The utility model discloses beneficial effect lies in: through the modular combination design of cylindrical iron bucket and bevel iron bucket, combine ear plate bolt fixed mode, replace the traditional lead wire or steel wire rope bundle's loose connection, greatly enhanced the water flow impact resistance of iron bucket group. The chessboard skeleton platform is locked through the steel wire rope binding of longitudinal and transverse roundwood, further promotes the structure rigidity and anti-overturning performance, solves the problem that the platform is easy to sway in the prior art, and the stability is poor. Single iron bucket volume increases, and the draught depth increases significantly, and combining buoyancy calculation and safety factor design can be stably applied to 2m~30m water depth environment, breaks through the limitation in the prior art that is only applicable to shallow water. Iron bucket group, roundwood and board adopt the standardized assembly design, and are quickly assembled through bolt and steel wire rope, do not need welding equipment, reduce installation cost and time, support repeated utilization after disassembling, solve the defects of traditional channel steel assembly platform, such as heavy, and immovable. The integrated design of operation hole and capstan improves the drilling operation efficiency, and the guardrail structure guarantees the safety of operating personnel, through buoyancy calculation and safety factor verification, ensure that the platform still satisfies " geotechnical engineering investigation safety standard " under the maximum load, solve the safety hidden danger of insufficient bearing capacity in the prior art. Adopt the combination of low -cost steel and wood, and the manufacturing process is simple, and the iron bucket closed design avoids oil leakage, meets the water area engineering pollution standard, overcomes the problems, such as high cost of special equipment, and big environmental protection risk in the prior art. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 It is the structure schematic diagram of round iron bucket combination type water drilling platform.

[0012] Figure 2 It is the structure schematic diagram of iron bucket group.

[0013] Figure 3 It is the side view of cylindrical iron bucket.

[0014] Figure 4 It is the front view of cylindrical iron bucket.

[0015] Among them: 1 - bevel iron bucket, 2 - cylindrical iron bucket, 21 - ear plate, 3 - longitudinal roundwood, 4 - transverse roundwood, 5 - capstan, 6 - square wood, 7 - board, 8 - guardrail, 9 - iron bucket group. DETAILED DESCRIPTION

[0016] Example 1: The round iron barrel combined offshore drilling platform comprises iron barrel groups 9, round logs and wooden boards 7, each iron barrel group 9 is composed of a cylindrical iron barrel 2 and a bevel iron barrel 1, both of which are welded with steel plate roll plate side wall, the bevel iron barrel 1 is beveled at one end, and the two ends of the two barrels are welded with steel plates to form a closed barrel, and the thickness of all steel plates is 2mm-4mm; the ear plates 21 with through holes are evenly welded on the two ends of the side wall of the cylindrical iron barrel 2, the ear plates 21 with through holes are evenly welded on the non-bevel end of the side wall of the bevel iron barrel 1, a plurality of cylindrical iron barrels 2 are connected end to end and connected with the bevel iron barrel 1 at the front end, the bevel angle of the bevel iron barrel 1 is downward, and all the iron barrels are bolted through the through holes on the ear plates 21. The top of the iron barrel group 9 is fixed with a longitudinal round log 3 with the same length as the iron barrel group by a φ10mm steel wire rope and a clamp, the longitudinal round logs 3 of a plurality of iron barrel groups 9 and a plurality of transverse round logs 4 are bound and locked by a steel wire rope to form a chessboard-shaped skeleton platform, and the diameters of the longitudinal round logs 3 and the transverse round logs 4 are both 200mm. The square logs 6 are fixed on the transverse round logs 4 by using iron nails, and the wooden boards 7 are laid on the square logs 6 and fixed by using iron nails. A 50cm*50cm operation opening is formed on the wooden boards 7 and the iron barrel groups 9 below the wooden boards 7, and a winch 5 is installed beside the operation opening, and the operation opening is located on the front side of the platform; a guardrail 9 is erected around the wooden boards 7, and the guardrail 9 is composed of vertical rods, upper horizontal rods and lower horizontal rods, the vertical rod spacing is 2.0m, the upper horizontal rod height is 1.0m-1.2m, and the lower horizontal rod height is 1.0m. When the platform is placed, the front side thereof faces the water flow direction.

[0017] The platform is built according to the following steps:

[0018] Step 1: Analysis of stress condition

[0019] When designing the drilling platform, the vertical force should be mainly considered, because the power of the drilling machine is small, and the rotational moment around the drilling hole can be ignored, while the horizontal force generated by the water flow and the wind is variable. When there is strong wind and other bad weather, early warning should be done, and the vertical bearing capacity of the platform should be mainly considered when designing the drilling platform.

[0020] Step 2: Self-weight analysis

[0021] The materials for building the iron barrel raft type drilling platform mainly include iron barrels, wood, connecting fasteners and the like, in addition to the self-weight of the platform, the self-weights of the drilling machine, the drill pipe, the mud pump, the tools, the drilling and logging personnel should also be considered.

[0022] Step three: buoyancy calculation

[0023] According to Archimedes' principle, an object immersed in a liquid experiences an upward buoyant force equal in magnitude to the weight of the liquid displaced by the object, i.e. F buoyancy = G liquid displacement = ρ liquid g V displacement.

[0024] In the formula: ρliquid represents the density of the liquid; Vdisplaced represents the volume of liquid displaced by the object; g is the acceleration due to gravity, taken as 9.8.

[0025] When the object floats, F 浮 > G 物 And ρ 物 < ρ 液;

[0026] When the object sinks, F 浮 < G 物 And ρ 物 > ρ 液 ;

[0027] When the object is suspended, F 浮 = G 物 And ρ 物 = ρ 液 .

[0028] To meet the safety requirements for water area exploration in the "Safety Standard for Geotechnical Engineering Investigation" (GB50585—2019), calculate the minimum number of iron buckets required for the drilling platform to be in an uplifted state under maximum load.

[0029] Step 4: Calculation of load safety factor

[0030] According to the "Safety Standard for Geotechnical Engineering Investigation" (GB50585—2019) regarding water area exploration safety, the safety factor K for the total load capacity of the raft exploration platform should be greater than 3. The number of iron drums required to meet the load requirements.

[0031] Step 5: Determine the number of iron buckets

[0032] The actual number of iron barrels to be built is the maximum value between N load and Nmin iron barrels. When building the drilling platform, the left and right balance of the drilling platform must also be considered, and the number of iron barrels should be an integer multiple of 2.

[0033] Figure 1 , Figure 2 For example, there are five assemblies. Each assembly consists of five cylindrical iron barrels 2 (2m * φ1.2m) and one inclined iron barrel 1 (1.5m * φ1.2m). The cylindrical iron barrel 2 below the operating opening is half a barrel. There are a total of 24.5 cylindrical iron barrels 2 and 5 inclined iron barrels 1. The volume of a single cylindrical iron barrel 2 is 3.14 × 0.6² × 2 = 2.261 m³; the volume of a single inclined iron barrel 1 is 3.14 × 0.6² × 1.5 = 1.696 m³.

[0034] G 总浮力 =ρ 液 gV 排

[0035] =1000×9.8×(24.5×2.261+5×1.696)

[0036] =625970N=625.970KN,

[0037] G 总重力 =G 总浮力 ÷3=208.656KN, meaning that the self-weight of the drilling platform and all personnel and equipment is below 21.05t, which meets the safety requirements for water area exploration in the "Safety Standard for Geotechnical Engineering Investigation" (GB50585—2019).

Claims

1. A round iron barrel combined type offshore drilling platform, characterized in that The application relates to a kind of iron bucket group, log and board, each iron bucket group is made of cylindrical iron bucket and bevel iron bucket, the sidewall of two kinds of iron buckets is welded by steel plate roll plate, the bevel iron bucket is bevel at one end, the two ends of two kinds of iron buckets are welded steel plate to form closed iron bucket, and the ear plate with through hole is evenly welded at the two ends of the sidewall of cylindrical iron bucket, the ear plate with through hole is evenly welded at the non-bevel end of the sidewall of bevel iron bucket, a plurality of cylindrical iron buckets are connected in head-to-tail and connect bevel iron bucket at the most front end, the bevel angle of bevel iron bucket faces downward, and all iron buckets are fixed by the through hole on the ear plate through bolt;The top of iron bucket group is fixed with the longitudinal log with the same length of iron bucket group by steel wire rope and clamp, the longitudinal log of a plurality of iron bucket groups and a plurality of horizontal logs are locked by steel wire rope and tied to form the skeleton platform of chessboard shape, square wood is fixed on horizontal log by using iron nail, board is laid on square wood and fixed by using iron nail;Operation hole is opened on board and the iron bucket group below, and winch is installed beside operation hole, operation hole is located at the front side of platform;Guardrail is erected around board. The diameter of the longitudinal log and the horizontal log is not less than 200 mm.

2. The combination round iron tank barge water drilling platform as claimed in claim 1, wherein The size of the operation hole is 50 cm*50 cm.

3. The combination round iron tank barge water drilling platform as claimed in claim 1, wherein The guardrail is made of vertical rod, upper horizontal rod and lower horizontal rod, the distance between vertical rods is 2.0 m, the height of upper horizontal rod is 1.0 m~1.2 m, and the height of lower horizontal rod is 1.0 m.

4. The combination round iron tank barge water drilling platform as claimed in claim 1, wherein ​

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