NO20150204A1 - Method of using a newly developed horizontal drilling concept, related to new detailed technology that requires the production of new drilling equipment, as well as modification and upgrading of existing drilling equipment. - Google Patents

Description

Introductory description.

Procedure when using a newly developed horizontal drilling concept, related to new detail technology that requires the production of new drilling technical equipment, as well as modification -

and upgrading of existing drilling equipment that is specified in the patent requirements.

Future need for new technology to avoid damage to the environment, on land and at sea:

The oil/gas industry's future operations, for example outside Lofoten -, Vesterålen and Senja -, as well as other coastal oil/gas reservoirs, proven as of help of bea. seismic survey, which Norwegian and/or foreign authorities allow for trial drilling, as well as approval for extraction of the deposits on the respective country's continental shelf. Be it for example also outside: Cyprus, Ireland, Greenland, Canada, Alaska, the Svalbard Islands, Jan Main, and Arctic Russia.

The testing of the technology requires the use of a recognized drilling contractor, where a Robot-operated Rlgg installation is established on land for horizontal drilling to seismically proven coastal reservoirs at a distance within a radius of up to 40 km, such as the case outside the Andenes peninsula in Nordland county ; Norway.

The purpose is to preserve the environment at sea; on the seabed on the fishing banks and coral reefs. The concept contributes to the fact that the fisheries can take place undisturbed by the drilling & production activity, as well as, of course, to financial gain for the actors / shareholders.

The rig installation's investment will be assumed to be reduced by approx. 40% related to a floating rig. Furthermore, as a result of the concept, you save:

Anchor handling ship -, Stand by ship -, Supply ship, as well as saving on ship freight

of Containers.

Pollution - and damage to the seabed during anchoring of floating rigs does not occur. Pollution from oil-related ship traffic and from the drilling activities will be absent. The drilling activities are operated independently of the "weather windows", and of ice conditions in winter. Hellcopter services will cease to exist with the financial gains this entails. Operating personnel do not have to commute to and from installations offshore, with

the economic and safety benefit this provides.

The operational personnel will be onshore personnel, who can be equated with factory, workshop or oil refinery operators on land, with the financial gain this also entails. The personnel can live a "normal" family life.

Diving operations become unnecessary.

Lifeboats and cost-driving production stoppages for lifeboat exercises are excluded.

In total, costs are assumed to be reduced by over 70% related to traditional drilling and production methods offshore VERSUS onshore cf. concept description and the patent claims.

When the field(s) are declared economically viable by the authorities, production modules are built, near the above-mentioned Bore-Rfgglnstalsjon, as illustrated in Fig.l

With today's technology, you can drill approx. 14 kilometers of drill pipe in API steel grade.

If it is necessary to be able to drill further (for example up to 40 kilometres), a 3-dimensional drill pipe string is used, but then with the last -/ third (3rd) drill pipe string in high-alloy Titanium material with galvanically isolated steel tool-joints ).

In order to avoid leakage in the Casing wall (the casing pipes), wear and tear from drillpipe toot-joints during long-term horizontal drilling must be reduced.

The problem is solved by using Casing in high-alloy modified API steel grade. Existing "rolling walking equipment" that rolls on - and against the Casing wall, in order to reduce wear from the drillpipes' tool-jonts, (couplings) which are connected to the drillpipes today will have to be redesigned and patent-applied separately, as an independent patent application .

For optimal flexibility during horizontal drilling, a newly developed type of thick-walled weight pipe is used, in the technical language called; Heavy Wall Drill Pipes" / HWDP.

In addition, thick-walled "pop-joints" (short pipe lengths) with concave turns corresponding to the HWDP for every 12 pieces of drill pipe in the drill string(s) are installed in the drill pipe string(s).

Claims (1)

Requirements 1. Procedure when using a new horizontal drilling concept, as shown in the principle sketch marked fig. 1 The figure shows that the drilling operations, characterized by the drilling rig being placed on land and that the drilling operations can take place without destroying the environment on the seabed, on the fishing banks and on the coral reefs, and that the operations take place without hindering the fishing boat owners' activities. Claim 2. Procedure when using a new horizontal drilling concept according to claim 1, characterized in that to enable long-range horizontal drilling, drill pipe of API steel grade S139 is used, in combination with drill pipe of high-alloy Titanium with galvanically isolated Tool Joint connections as shown in fig. 2 and compare fig. 3 which shows a calculation. Claim 3. Procedure when using a new horizontal drilling concept according to claims 1-2, characterized by the fact that the Tool Joint (the coupling) shown on fig. 2 and 3 is the device that enables long-range horizontal drilling operations. In fig. 2 is "the blue colored sleeve, of API steel" with an "outside API diameter geography" which enables existing drilling rig installations' screw-on machine to be used. The red dotted area is "stainless steel in grade E/V. no. 1. 4404, equivalent to 316L", which is welded into the blue sleeve, which causes the "stainless steel" to defeund with the tool-Joint-(American Petroleum Institute) (API) steel grade, with the result that the galvanic voltage range becomes non-existent in the well environment. The red area shows high-alloy Titanium drill pipe. The difference in the galvanic voltage range between stainless steel grade grade 316L and all grades of titanium becomes non-existent. Claim 4. Procedure when using a new horizontal drilling concept according to claims 1-3, characterized by the fact that long-range horizontal drilling operations require "new type of weight-pipe design", as shown in fig. 4 Mathematical curve, (fig. 4"} shows that " Heavy Wall Drill Pipes", HWDP, is more resistant to breakage than drill pipe in API grade. As Fig. 4 shows, HWDP is provided with "concave tapers" (A) (C) (B) to wall thicknesses towards the wall thickness of the drill pipe. HWDP is also made shorter than Standard. This to make the HWDP more flexible at the beginning of horizontal (drilling), as well as to get better fluid circulation upwards in the well. Requirement 5. Procedure when using a new horizontal drilling concept according to requirements 1 - 4, characterized by the fact that for every 12 (pcs.) drill pipe is fitted with "a 5 meter long Pop-Joint in thick-walled high-alloy titanium grade" with an external diameter (OD) corresponding to what is called in the technical language: "Special Clearance" (OD), prepared with concave downturns, corresponding down stream ingen, compare fig.4, to dampen the torque forces at the beginning of the transitions to the horizontal drilling operation. The time ("resting time") it takes to install the Joint contributes to the material crystals in the drill ring (drill pipes in total) being oriented back to the normal state, as well as helping to prevent twist off. Claim 6. Procedure when using a new horizontal drilling concept in accordance with claims 1-5, characterized by the fact that existing "emergency suspension devices" are upgraded in cooperation with a service and drilling contractor, in order in cases where this becomes relevant to bring the Casing up to the drilling deck for fitting a new hanger seal. Claim 7. Procedure when using a new horizontal drilling concept according to claims 1-6, characterized by the fact that the "existing hydraulic circulation head unit" is upgraded in collaboration with a service and drilling contractor, in order to obtain a stable well fluid circulation upwards in the well, during long-range horizontal drilling operations. Claim 8. Procedure when using a new horizontal drilling concept according to claims 1-7, characterized by the fact that the production pipes (API tubing) are installed with a new type of designed "quick coupling without threads built on the Morse design principle", fig.5, which via a "robot-operated heating device", instead of the rail-running screw-up device on the rig's drill deck that is used today, to rotate the steel-to-steel seal couplings with threads. The purpose is to reduce fouling of the "rotary table" on the drill deck, with the resulting comsequence; environmental damage laying leaks to the sea surface, as well as to reduce the installation costs of production-related (API tubing). Characterized in that the connection, fig. S, does not require threading, and thread rotation Claim 9. Procedure when using a new horizontal drilling concept according to claims 1-8, are independent detailed requirements, but are characterized by the fact that the detailed requirements are a prerequisite for long-range horizontal drilling and well completion operations with a drilling rig - installation located on land, onshore versus offshore. A professional will understand that the Concept can also, with great financial advantage, be used on existing offshore rigging installations in cases where the operating company deems it desirable to drill far-reaching horizontal wells Summary: Procedures using a new horizontal drilling concept have large financial savings. Even with an oil price down to USD 45 per barrels, the repayment of the investments, as well as a reasonable profit for the shareholders can be realised. The concept safeguards the environment on the seabed -, the fish banks and the coral reefs, as well as improves the working operating environment on the land-based rig, versus on floating rigs at sea that require an anchor, and accompanying vessels that circulate around the rig, and supply ship assistance Regarding the above requirements, the mud pumps must is upgraded correspondingly to the pressure height column measured from the drill deck down to the reservoirs, in the few cases where this becomes relevant. In parallel with the establishment of the Rig Installation, the oil/operating company (in collaboration with the llsens partners) and the respective host municipality/county and possible private companies establish: 'Electric wind power plant for the operation of the drilling and production activities. * Administration building. Crew hotel with canteen and dice facilities. ♦Technical and other necessary infrastructure, such as repair and maintenance workshops.<*>Drill cuttings landfill and treatment station on land. "Without ship charter costs". The litter is continuously transported to the processing station on a conveyor belt <*>Wharf facilities are dimensioned by the municipality to be able to serve vessels for the local industry.<*>Roads in the area. <*>Transport companies for the transport of material for the drilling and production activities. •Tourist hotels-,<*>Shops-, 'Restaurants-,'Family homes-, 'Kindergartens-,<*>Schools-, as well as other necessary shoots come as a result of the establishment ff The operational personnel will be regarded as factory personnel on land, equal with oil refinery operator personnel with corresponding salary tariffs, ff Helicopter for round-trip commuting of personnel is excluded. The personnel can live a normal family life. ff Container ship transport costs are not included.